A horizontally and vertically adjustable Class IV certifiable trailer hitch assembly that has a 16 inch range of 12 vertical adjustments in the most common vertical increments. The main body of the trail hitch assembly, the trailer hitch minus the hitch ball components, has a two part connectable construction of a support member and a ball mount member, each of which can be rotated 180 degrees before connection. In any of these four configurations an optional coupling plate may be utilized.